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3、让学生了解人类的重大发明，激发学生的求知欲望和远大理想。
教学准备：多媒体和卡通头饰。
教学过程：
Step1：Warming-up
1、Watch the video;
2、Let’s recall the past.
(通过一组过去生活的图片，让学生感受到社会的进步。)
3、Revision
a、Introduce myself.
b、Introduce themselves.
c、Introduce Clothes 、Food、House and Transportation about the past and the present.
（通过教师自我介绍、学生自我介绍，以及过去和现在日常生活衣食住行的变化作对比，让学生进一步掌握be动词和行为动词的一般过去式和一般现在时的句型结构，让学生能够更熟练地运用此类句型对比过去和现在的事情。）
Step2: Presentation
1 Sound time
1）Talk and lead-in： Bobby and Sam also learn English at school. This is an English lesson.
?Ask: What are they doing now?
2)Try to read the sentences;
3)Explain :er is pronounced as ---
4)Try to say some other words about “er”
5)Read the words together ,then make some new sentences with the words.
2Cartoon time
1) Watch the cartoon, then answer :Miss Fox gets angry. Why?
2) Read together and judge.
3) Read alone and answer: What do you think of Sam and Bobby?
4) Listen and repeat.
5) Think and imagine: If you were Miss Fox, what would you say?
6) Read in roles and try to act.
7) Guess : What are Bobby and Sam talking about? (此问题过渡到下一板块文化知识的介绍)
3 Culture time
1） They’re talking about a book called Great inventions.